Introduction:
In this article demonstrates,how to create dynamic paging using c#.
Main:
For ex,if we used scrollable datagrid,we need dynamic paging.Just Copy and try the belowcode,
Step -1: Create one scrollable datagrid,
<div id="Scrollablegrid" style="display:block;overflow:auto;width:980px;height:250px;">
<asp:Grid id="SampleGrid" runat="server" AutoGenerateColumn="true" AllowPaging="true" PageSize="20"/>
</div>
<asp:table id="pagingtable" width=100% runat="server">
<asp:TableRow>
<asp:TableCell id="Cell"></asp:TableCell>
</asp:TableRow>
</asp:Table>
<div id="Scrollablegrid" style="display:block;overflow:auto;width:980px;height:250px;"> <asp:Grid id="SampleGrid" runat="server" AutoGenerateColumn="true" AllowPaging="true" PageSize="20"/> </div> <asp:table id="pagingtable" width=100% runat="server"> <asp:TableRow> <asp:TableCell id="Cell"></asp:TableCell> </asp:TableRow> </asp:Table> |
Step -2: Bind the pager Properties into pager table using grid_itemcreated event,
private void SampleGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
{
if(e.Item.ItemType == "Pager")
{
int var_i = new Int16();
pagingtable.Rows[0].Cells.Clear();
TableCell ocell = new TableCell();
oCell.ColumnSpan = 4;
oCell.Width = new Unit(800,UnitType.Pixel);
oCell.HorizondalAlign = HorizondalAlign.Left;
pagingtable.Rows[0].Cells.Add(oCell);
for (var_i=0; var_i<e.Item.Controls[0].Controls.Count;var_i++)
{
if (e.Item.Controls[0].HasControls())
{
if (e.Item.Controls[0].Controls[var_i].GetType().ToString() == "System.Web.UI.WebControls.DataGridLinkButton")
{
LinkButton ibutton = new LinkButton();
ibutton = (LinkButton) e.Item.Controls[0].Controls[var_i];
ibutton.Attributes.Add("href",Page.GetPostBackClientHyperlink(e.Item.Controls[0].Controls[var_i],""));
pagingtable.Rows[0].Cells[0].Controls.Add(ibutton);
}
else if (e.Item.Controls[0].Controls[var_i] is LiteralControl)
{
LiteralControl oControl = new LiteralControl();
oControl = (LiteralControl) e.Item.Controls[0].Controls[var_i];
pagingtable.Rows[0].Cells[0].Controls.Add(oControl.Text);
}
else if (e.Item.Controls[0].Controls[var_i] is Label)
{
Lable oControl = new Label();
oControl = (Label) e.Item.Controls[0].Controls[var_i];
pagingtable.Rows[0].Cells[0].Controls.Add(oControl.Text);
}
}
}
}
//For handling Postbacks
private void page_prerender(object sender,System.EventArgs e)
{
if(SampleGrid.HasControls())
{
foreach(DataGridItem dgitem in SampleGrid.Controls[0].Controls)
{
int var_i = new Int16();
for (var_i=0; var_i<dgitem.Item.Controls[0].Controls.Count;var_i++)
{
if (dgitem.Item.Controls[0].Controls[var_i].GetType().ToString() == "System.Web.UI.WebControls.DataGridLinkButton")
{
LinkButton ibutton = new LinkButton();
ibutton = (LinkButton) dgitem.Item.Controls[0].Controls[var_i];
ibutton.Attributes.Add("href",Page.GetPostBackClientHyperlink(dgitem.Item.Controls[0].Controls[var_i],""));
pagingtable.Rows[0].Cells[0].Controls.Add(ibutton);
}
}
}
}
}
private void SampleGrid_ItemCreated(Object sender,DataGridItemEventArgs e) { if(e.Item.ItemType == "Pager") { int var_i = new Int16(); pagingtable.Rows[0].Cells.Clear(); TableCell ocell = new TableCell(); oCell.ColumnSpan = 4; oCell.Width = new Unit(800,UnitType.Pixel); oCell.HorizondalAlign = HorizondalAlign.Left; pagingtable.Rows[0].Cells.Add(oCell); for (var_i=0; var_i<e.Item.Controls[0].Controls.Count;var_i++) { if (e.Item.Controls[0].HasControls()) { if (e.Item.Controls[0].Controls[var_i].GetType().ToString() == "System.Web.UI.WebControls.DataGridLinkButton") { LinkButton ibutton = new LinkButton(); ibutton = (LinkButton) e.Item.Controls[0].Controls[var_i]; ibutton.Attributes.Add("href",Page.GetPostBackClientHyperlink(e.Item.Controls[0].Controls[var_i],"")); pagingtable.Rows[0].Cells[0].Controls.Add(ibutton); } else if (e.Item.Controls[0].Controls[var_i] is LiteralControl) { LiteralControl oControl = new LiteralControl(); oControl = (LiteralControl) e.Item.Controls[0].Controls[var_i]; pagingtable.Rows[0].Cells[0].Controls.Add(oControl.Text); } else if (e.Item.Controls[0].Controls[var_i] is Label) { Lable oControl = new Label(); oControl = (Label) e.Item.Controls[0].Controls[var_i]; pagingtable.Rows[0].Cells[0].Controls.Add(oControl.Text); } } } } //For handling Postbacks private void page_prerender(object sender,System.EventArgs e) { if(SampleGrid.HasControls()) { foreach(DataGridItem dgitem in SampleGrid.Controls[0].Controls) { int var_i = new Int16(); for (var_i=0; var_i<dgitem.Item.Controls[0].Controls.Count;var_i++) { if (dgitem.Item.Controls[0].Controls[var_i].GetType().ToString() == "System.Web.UI.WebControls.DataGridLinkButton") { LinkButton ibutton = new LinkButton(); ibutton = (LinkButton) dgitem.Item.Controls[0].Controls[var_i]; ibutton.Attributes.Add("href",Page.GetPostBackClientHyperlink(dgitem.Item.Controls[0].Controls[var_i],"")); pagingtable.Rows[0].Cells[0].Controls.Add(ibutton); } } } } } |
Conclusion:
Hope this helps,
Happy Coding.
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